Simple definition
A domain controller is a server that is responsible for checking identifiers and providing the information necessary for the operation of a Windows domain.
Technical definition
It runs Active Directory Domain Services, hosts a copy of the directory and participates in its replication. It usually provides DNS, Kerberos, LDAP and group strategies to the domain machines.
What’s the point?. ?
Centralize the authentication, manage accounts and maintain several consistent copies of the directory.
Concrete example.
When a user enters his password at login, the post contacts a domain controller to validate the access…
Common problems.
- DNS server pointing to a bad address.
- Erroring Active Directory.
- AD DS or Netlogon services discontinued.
- Network ports blocked between sites.
Related terms.
Active Directory (AD) · DNS · Kerberos · LDAP · GPO
To be noted: This sheet shows the general operation of the term. The exact settings can vary according to the software, builders and environments.